Here's another reason you might be exhausted after that preschool birthday party: Your brain had to work to figure out who actually asked for more ice cream. 'What we found with two-and-a-half-year-olds is that it's amazingly hard for adults to identify who's talking,' said Angela Cooper, a postdoctoral researcher at the University of Toronto. Cooper's co-authored research will be presented at the Acoustical Society of America's 176th Meeting, Nov. 5-9.
Computer algorithms are playing a growing role in analyzing hydrophone audio data when monitoring marine life, but human listeners can complement and enhance these algorithms. A project known as Orcasound has produced a web application that will enable citizen scientists to listen to livestreaming audio from hydrophones near the San Juan Islands. Researchers will describe the new web app and the value of citizen science at the Acoustical Society of America's 176th Meeting, Nov. 5-9.
Next month, Rodney Rountree, 'The Fish Listener,' will talk about his work with Francis Juanes of the University of Victoria, to document calls made by fish in the Pacaya-Samiria National Reserve in Peru in a presentation at the Acoustical Society of America's 176th Meeting, Nov. 5-9. These calls may be useful for tracking piranha populations through passive acoustic monitoring.
With thousands of fans, college basketball games can be almost deafening. Some arenas have decibel meters, which can provide some indication of the noise generated. Researchers at Brigham Young University wanted to see whether machine learning algorithms could pick out patterns within the raw acoustical data that indicated the crowd's mood, thereby providing clues as to what was happening in the game itself. They'll present at the Acoustical Society of America's 176th Meeting, Nov. 5-9.
Some conversations are forgotten as soon as they are over, while other exchanges may leave lasting imprints. Researchers want to understand why and how listeners remember some spoken utterances more clearly than others. They're specifically looking at ways in which clarity of speaking style can affect memory. They will describe their work at the Acoustical Society of America's 176th Meeting, Nov. 5-9.
One concern with the increase vessel transits in the western Canadian Arctic is how noise pollution can detrimentally affect marine animals. Researchers at the University of Victoria, WCS Canada and JASCO Applied Sciences have found that the negative impact of noise from shipping vessels can be mitigated by reducing the ship's speed. They will present their research at the Acoustical Society of America's 176th Meeting, Nov. 5-9.
Researchers have developed a new device that can be used to visualize how sound-induced vibrations travel through the ear.
Researchers at the University of Sussex have become the first in the world to develop technology which can bend sound waves around an obstacle and levitate an object above it.
Smart devices can seem dumb if they don't understand what's happening around them. Carnegie Mellon University researchers say environmental awareness can be enhanced by analyzing sound and vibrations. The researchers report today at the Association for Computing Machinery's User Interface Software and Technology Symposium in Berlin about two approaches -- one that uses the ubiquitous microphone, and another that employs a modern-day version of eavesdropping technology once used by the KGB.
Researchers from Tokyo Metropolitan University have applied machine-learning techniques to achieve fast, accurate estimates of local geomagnetic fields using data taken at multiple observation points, potentially allowing detection of changes caused by earthquakes and tsunamis. A deep neural network (DNN) model was developed and trained using existing data; the result is a fast, efficient method for estimating magnetic fields for unprecedentedly early detection of natural disasters. This is vital for developing effective warning systems that might help reduce casualties and widespread damage.